<!-- Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. -->
<template>
  <div
    class="datepicker cp"
    :class="{
      'datepicker-range': range,
      datepicker__clearable: clearable && text && !disabled,
    }"
    ref="datepicker"
  >
    <input
      class="cp"
      readonly
      :value="text"
      :class="[show ? 'focus' : '', inputClass]"
      :disabled="disabled"
      :placeholder="placeholder"
      :name="name"
      v-if="type !== 'inline'"
    />
    <a class="datepicker-close" @click.stop="cls"></a>
    <transition name="datepicker-anim">
      <div
        class="datepicker-popup"
        :class="[popupClass, { 'datepicker-inline': type === 'inline' }, position]"
        tabindex="-1"
        v-if="show || type === 'inline'"
      >
        <template v-if="range">
          <div class="datepicker-popup__sidebar">
            <!-- 扩大时间范围 -->
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('quarter1')">
              最近1min
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('quarter2')">
              最近2min
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('quarter5')">
              最近5min
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('quarter')">
              {{ local.quarterHourCutTip }}
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('half')">
              {{ local.halfHourCutTip }}
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('hour')">
              {{ local.hourCutTip }}
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('day')">
              {{ local.dayCutTip }}
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('week')">
              {{ local.weekCutTip }}
            </button>
            <button type="button" class="datepicker-popup__shortcut" @click="quickPick('month')">
              {{ local.monthCutTip }}
            </button>
          </div>
          <div class="datepicker-popup__body">
            <DateCalendar
              v-model="dates[0]"
              :value="dates[0]"
              :dates="dates"
              :left="true"
              :disabledDate="disabledDate"
              :format="format"
              @ok="ok"
              @setDates="setDates"
            />
            <DateCalendar
              v-model="dates[1]"
              :value="dates[1]"
              :dates="dates"
              :right="true"
              :disabledDate="disabledDate"
              :format="format"
              @ok="ok"
              @setDates="setDates"
            />
          </div>
        </template>
        <template v-else>
          <DateCalendar
            v-model="dates[0]"
            :value="dates[0]"
            :disabledDate="disabledDate"
            :dates="dates"
            :format="format"
            @ok="ok"
            @setDates="setDates"
          />
        </template>
        <div v-if="showButtons" class="datepicker__buttons">
          <button @click.prevent.stop="cancel" class="datepicker__button-cancel">
            {{ local.cancelTip }}
          </button>
          <button @click.prevent.stop="submit" class="datepicker__button-select">
            {{ local.submitTip }}
          </button>
        </div>
      </div>
    </transition>
  </div>
</template>

<script lang="ts" setup>
  import { ref, computed, onMounted, onBeforeUnmount, watch } from "vue";
  import { useI18n } from "vue-i18n";
  import DateCalendar from "./DateCalendar.vue";
  import { useTimeoutFn } from "@/hooks/useTimeout";
  /*global defineProps, defineEmits*/
  const datepicker = ref(null);
  const { t } = useI18n();
  const show = ref<boolean>(false);
  const dates = ref<Date | string[] | any>([]);
  const props = defineProps({
    position: { type: String, default: "bottom" },
    name: [String],
    inputClass: [String],
    popupClass: [String],
    value: [Date, Array, String],
    disabled: [Boolean],
    type: {
      type: String,
      default: "normal",
    },
    rangeSeparator: {
      type: String,
      default: "~",
    },
    clearable: {
      type: Boolean,
      default: false,
    },
    placeholder: [String],
    disabledDate: {
      type: Function,
      default: () => false,
    },
    format: {
      type: String,
      default: "YYYY-MM-DD",
    },
    showButtons: {
      type: Boolean,
      default: false,
    },
    dateRangeSelect: [Function],
  });
  const emit = defineEmits(["clear", "input", "confirm", "cancel"]);
  const local = computed(() => {
    return {
      dow: 1, // Monday is the first day of the week
      hourTip: t("hourTip"), // tip of select hour
      minuteTip: t("minuteTip"), // tip of select minute
      secondTip: t("secondTip"), // tip of select second
      yearSuffix: t("yearSuffix"), // format of head
      monthsHead: t("monthsHead").split("_"), // months of head
      months: t("months").split("_"), // months of panel
      weeks: t("weeks").split("_"), // weeks
      cancelTip: t("cancel"), // default text for cancel button
      submitTip: t("confirm"), // default text for submit button
      quarterHourCutTip: t("quarterHourCutTip"),
      halfHourCutTip: t("halfHourCutTip"),
      hourCutTip: t("hourCutTip"),
      dayCutTip: t("dayCutTip"),
      weekCutTip: t("weekCutTip"),
      monthCutTip: t("monthCutTip"),
    };
  });
  const tf = (time: Date, format?: any): string => {
    const year = time.getFullYear();
    const month = time.getMonth();
    const day = time.getDate();
    const hours24 = time.getHours();
    const hours = hours24 % 12 === 0 ? 12 : hours24 % 12;
    const minutes = time.getMinutes();
    const seconds = time.getSeconds();
    const milliseconds = time.getMilliseconds();
    const dd = (t: number) => `0${t}`.slice(-2);
    const map: { [key: string]: string | number } = {
      YYYY: year,
      MM: dd(month + 1),
      MMM: local.value.months[month],
      MMMM: local.value.monthsHead[month],
      M: month + 1,
      DD: dd(day),
      D: day,
      HH: dd(hours24),
      H: hours24,
      hh: dd(hours),
      h: hours,
      mm: dd(minutes),
      m: minutes,
      ss: dd(seconds),
      s: seconds,
      S: milliseconds,
    };
    return (format || props.format).replace(/Y+|M+|D+|H+|h+|m+|s+|S+/g, (str: string) => map[str]);
  };
  const range = computed(() => {
    return dates.value.length === 2;
  });
  const text = computed(() => {
    const val = props.value;
    const txt = dates.value.map((date: Date) => tf(date)).join(` ${props.rangeSeparator} `);
    if (Array.isArray(val)) {
      return val.length > 1 ? txt : "";
    }
    return val ? txt : "";
  });
  const get = () => {
    return Array.isArray(props.value) ? dates.value : dates.value[0];
  };
  const cls = () => {
    emit("clear");
    emit("input", range.value ? [] : "");
  };
  const vi = (val: any) => {
    if (Array.isArray(val)) {
      return val.length > 1 ? val.map((item) => new Date(item)) : [new Date(), new Date()];
    }
    return val ? [new Date(val)] : [new Date()];
  };
  const ok = (leaveOpened: boolean) => {
    emit("input", get());
    !leaveOpened &&
      !props.showButtons &&
      useTimeoutFn(() => {
        show.value = range.value;
      }, 1);
  };
  const setDates = (d: Date, pos: string) => {
    if (pos === "right") {
      dates.value[1] = d;
      return;
    }
    dates.value[0] = d;
  };
  const dc = (e: MouseEvent) => {
    show.value = (datepicker.value as any).contains(e.target) && !props.disabled;
  };
  const quickPick = (type: string) => {
    const end = new Date();
    const start = new Date();
    switch (type) {
      case "quarter1":
        start.setTime(start.getTime() - 60 * 1 * 1000);// 1min
        break;
      case "quarter2":
        start.setTime(start.getTime() - 60 * 2 * 1000); //15 mins
        break;
      case "quarter3":
        start.setTime(start.getTime() - 60 * 3 * 1000); //15 mins
        break;
      case "quarter5":
        start.setTime(start.getTime() - 60 * 5 * 1000); //15 mins
        break;
      case "quarter":
        start.setTime(start.getTime() - 60 * 15 * 1000); //15 mins
        break;
      case "half":
        start.setTime(start.getTime() - 60 * 30 * 1000); //30 mins
        break;
      case "hour":
        start.setTime(start.getTime() - 3600 * 1000); //1 hour
        break;
      case "day":
        start.setTime(start.getTime() - 3600 * 1000 * 24); //1 day
        break;
      case "week":
        start.setTime(start.getTime() - 3600 * 1000 * 24 * 7); //1 week
        break;
      case "month":
        start.setTime(start.getTime() - 3600 * 1000 * 24 * 30); //1 month
        break;
      default:
        break;
    }
    dates.value = [start, end];
    emit("input", get());
  };
  const submit = () => {
    emit("confirm", get());
    show.value = false;
  };
  const cancel = () => {
    emit("cancel");
    show.value = false;
  };
  onMounted(() => {
    dates.value = vi(props.value);
    document.addEventListener("click", dc, true);
  });
  onBeforeUnmount(() => {
    document.removeEventListener("click", dc, true);
  });
  watch(
    () => props.value,
    (val: unknown) => {
      dates.value = vi(val);
    },
  );
</script>

<style lang="scss" scoped>
  @keyframes datepicker-anim-in {
    0% {
      opacity: 0;
      transform: scaleY(0.8);
    }

    100% {
      opacity: 1;
      transform: scaleY(1);
    }
  }

  @keyframes datepicker-anim-out {
    0% {
      opacity: 1;
      transform: scaleY(1);
    }

    100% {
      opacity: 0;
      transform: scaleY(0.8);
    }
  }

  .datepicker {
    display: inline-block;
    position: relative;
  }

  .datepicker-icon {
    display: block;
    position: absolute;
    top: 8px;
    left: 8px;
    color: #515a6ecc;
  }

  .datepicker-close {
    display: none;
    position: absolute;
    width: 34px;
    height: 100%;
    top: 0;
    right: 0;
    cursor: pointer;
  }

  .datepicker-close::before {
    display: block;
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    left: 50%;
    top: 50%;
    margin-left: -8px;
    margin-top: -8px;
    text-align: center;
    color: $text-color;
    border-radius: 50%;
    background: $disabled-color
      url("")
      no-repeat 50% 50%;
  }

  .datepicker__clearable:hover::before {
    display: none;
  }

  .datepicker__clearable:hover .datepicker-close {
    display: block;
  }

  .datepicker-close:hover::before {
    background-color: #afafaf;
  }

  .datepicker > input {
    color: inherit;
    // transition: all 200ms ease;
    border-radius: 4px;
    border: 0;
    background: none;
    height: 28px;
    box-sizing: border-box;
    outline: none;
    padding: 0 5px;
    width: 100%;
    user-select: none;
    font-family: Monaco;
    letter-spacing: -0.7px;
  }

  // .datepicker > input.focus {
  //   border-color: #3f97e3;
  //   -webkit-box-shadow: 0 0 5px rgba(59, 180, 242, 0.3);
  //   box-shadow: 0 0 5px rgba(59, 180, 242, 0.3);
  // }

  .datepicker > input:disabled {
    cursor: not-allowed;
    background-color: #ebebe4;
    border-color: #e5e5e5;
    box-shadow: none;
  }

  .datepicker-popup {
    border-radius: 4px;
    position: absolute;
    transition: all 200ms ease;
    opacity: 1;
    transform: scaleY(1);
    font-size: $font-size-smaller;
    background: $theme-background;
    box-shadow: 0 1px 6px rgb(99 99 99 / 20%);
    margin-top: 2px;
    outline: 0;
    padding: 5px;
    overflow: hidden;
    z-index: 999;

    &.top {
      bottom: 30px;
      right: 0;
      transform-origin: center bottom;
    }

    &.bottom {
      top: 30px;
      right: 0;
      transform-origin: center top;
    }

    &.left {
      top: 30px;
      transform-origin: center top;
    }

    &.right {
      right: -80px;
      top: 30px;
      transform-origin: center top;
    }

    &__sidebar {
      position: absolute;
      top: 0;
      bottom: 0;
      width: 100px;
      height: 100%;
      padding: 5px;
      border-right: solid 1px var(--sw-border-color-light);
    }

    &__shortcut {
      display: block;
      width: 100%;
      border: 0;
      background-color: transparent;
      line-height: 34px;
      font-size: $font-size-smaller;
      color: var(--sw-topology-color);
      text-align: left;
      outline: none;
      cursor: pointer;
      white-space: nowrap;

      &:hover {
        color: #3f97e3;
      }
    }

    &__body {
      margin-left: 100px;
      padding-left: 5px;
    }
  }

  .datepicker-inline {
    position: relative;
    margin-top: 0;
  }

  .datepicker-range {
    min-width: 238px;
  }

  .datepicker-range .datepicker-popup {
    width: 520px;
  }

  .datepicker-bottom {
    float: left;
    width: 100%;
    text-align: right;
  }

  .datepicker-btn {
    padding: 5px 10px;
    background: #3f97e3;
    color: $text-color;
    border-radius: 2px;
    display: inline-block;
    cursor: pointer;
  }

  .datepicker-anim-enter-active {
    transform-origin: 0 0;
    animation: datepicker-anim-in 0.2s cubic-bezier(0.23, 1, 0.32, 1);
  }

  .datepicker-anim-leave-active {
    transform-origin: 0 0;
    animation: datepicker-anim-out 0.2s cubic-bezier(0.755, 0.05, 0.855, 0.06);
  }

  .datepicker__buttons {
    display: block;
    text-align: right;
  }

  .datepicker__buttons button {
    display: inline-block;
    font-size: 13px;
    border: none;
    cursor: pointer;
    margin: 10px 0 0 5px;
    padding: 5px 15px;
    color: $text-color;
  }

  .datepicker__buttons .datepicker__button-select {
    background: #3f97e3;
  }

  .datepicker__buttons .datepicker__button-cancel {
    background: var(--sw-topology-color);
  }
</style>
